Data Sheet
AD7904/AD7914/AD7924
POWER ON
DUMMY CONVERSION
DIN: WRITE TO CONTROL REGISTER,
WRITE BIT = 1,
SELECT CODING, RANGE, AND POWER MODE.
SELECT CHANNEL ADD1, ADD0 FOR CONVERSION.
SEQ1 = 1, SEQ0 = 1
CS
DOUT: CONVERSION RESULT FROM CHANNEL 0
CONTINUOUSLY CONVERTS ON A CONSECUTIVE
SEQUENCE OF CHANNELS FROM CHANNEL 0 UP
TO AND INCLUDING THE PREVIOUSLY SELECTED
ADD1, ADD0 IN THE CONTROL REGISTER
CS
WRITE BIT = 0
CONTINUOUSLY CONVERTS ON THE SELECTED
SEQUENCE OF CHANNELS BUT WILL ALLOW
RANGE, CODING, AND SO FORTH, TO CHANGE IN
CS
THE CONTROL REGISTER WITHOUT INTERRUPTING WRITE BIT = 1,
THE SEQUENCE, PROVIDED SEQ1 = 1, SEQ0 = 0
SEQ1 = 1,
SEQ0 = 0
Figure 12. SEQ1 Bit = 1, SEQ0 Bit = 1 Flowchart
Rev. C | Page 17 of 32
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